Each Widget has a Wallpaper Glyph. This is the Glyph used to fill in any empty
space not touched by the Painter in paint_event(...)
.
Wallpaper is optional, and if not set will not fill empty space.
Will set the Wallpaper to the given Glyph.
By passing in std::nullopt
, this will unset the Wallpaper.
If this is enabled, it will apply the Widget's default Brush to the Wallpaper.
This is defaulted to true
at Widget construction.
wallpaper(Glyph)
wallpaper(std::nullopt_t)
wallpaper_with_brush()
wallpaper_without_brush()